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K. 0. NELSON AND 0. ALBERT.

VALVE.

APPLICATION mw Nov. a, 1920.

1,438,325, Patented Dec. 12, 1922.

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'l KaPIELNElSw UHD AlhEr'Jt laatented Dec. 12, 1922.

[UNITED STATES PATENT OFFICE.

naar. o. NELsoN AND o'rro ALBERT, or MILWAUKEE, wisconsin, AssreNons ro GALLANn-HENNINGMEG. oo.,

OF MILWAUKEE, WISCONSIN.

VALVE. L

Application filed November 8, 1920. Serial No. 422,461.`

To @ZZ whom t ma-'y concern.'

Be it known that Kann O. NELSON and @'r'ro ALBERT, both citizens of the United States, and residentsot Milwaukee, in the county ol Milwaukee and State ci lVisconsin, have invented certain new and useful improvements in Valves; and they do hereby declare that the following is a full, clear, and exact description thereof.

Our invention relates to valves` of the plunger type, and it is our purpose to pro vide improvements in the construction of such valves' whereby maximum area is obtained to permit a free flow of fluid through 4the valve to thereby maintain an even pressure on all of its parts, and whereby maXlmum area is also obtained for supporting the packing material surrounding the plunger to maintain the valve tight, whereby cutting of thepacking is eliminated.

@ne embodiment ol our invention is illustrated in the accompanying drawings, but it is to be understood that the structure shown is merely intended to disclose the essential features of our invention and that it might be embodied in .various other structures within the scope of our invention as delined in the appended claim.

In the drawings, wherein is illustrated our invention in the best form known tous at present Figure 1 is a vertical section through a valve embodying the essential and novel `features et our invention;

Figure 2, a view partly in elevation and partly in section et the plunger; 'and Figure 3, a section on the line 3-3 of Figure 1.

Referring tothe drawings in detail, 10 designates thev block or housing of our iinproved valve and this block or housing has extending therethrough .an opening 11 which is restricted in diameter throughout a short portion of its length as at 12, to thereby provide shoulders 13 and 111, and at each ot its ends said opening is internally threaded as at 15. f

Seated against the shoulder 13 isa gland ring 16 and upon vthis ring is arranged suitable packing material 17. A cage comprising spaced end rings 18 and connected by spaced bars 19 is arranged within the opening 11 with one of the rings 18 abutting the packing 17, and the other ring forming a seat or abutment for packing `2O.

Threaded'in one open.` end of the opening 1171s a -gland21 and the inner end of' this gland abuts the packing 20 so that when the gland is screwed inward both the packing 2O and the packing 17 will be squeezed tightly against the sides orm a plunger 22 extending through the cage and housing, whereby leakage around the plunger is prevented.

Seated against the shoulder 111 is a gland ring 23 and upon this ring is arranged packing material 211 which vis squeezed against the plunger 22 by a gland 25 threaded in the second open end ot opening 11 similarly to the gland 21.

r-in inlet pipe 26 has communication with the larger portion of the opening 11 and with the plunger through the cage, while an outlet pipe 27 communicates with the restricted portion ot the opening 11. rlhe plunger designed to be reciprocated whereby a tlow of liuid between the pipes 26 and 27 may be permitted or prevented, and in order to accomplish reciprocating action ol3 the plunger 1 preferably extend a reduced end ot the same through the gland 25 and connect therewith any suitable operating means such as a lever, not shown in the drawings.

The plunger is of elongated cylindrical shape and is solid throughout a portion ot its length, as at 28, and throughout another portion` of its length is provided with a plurality oit radial elongated slots 29 which intersect in the axis of the plunger. VJ hen the plunger is moved to the position shown in Figure 1 ol the drawings communication is established between the pipes 26 and 27 through the opening 11, the cage and through the` said slots 29, and when the plunger is moved longitudinally towards the gland 21 its solid portion 28 extends between the packing materials 17 and 2dand thereby acts asa cut off to prevent communication between the inlet and outlet pipes. y

It is to be noted that bars 30 are formed when the plunger is slotted as at 29 and the outer faces oi' these bars contact with the packing` 17 so that maximum area oi the plunger is provided for engaging the packing whereby the possibility oli the same being cut by the plunger during its opera tion is eliminated to the greatest possible extent. Likewise the provision oli a plu rality or radial slots 29 provides inaxiinum area 'for the flow of fluid through the plunger v and due to the arrangement of these slots an area p essure is maintained around the plunger Whenever the valve is in opera tion.

Having thus fully described our-invention, what we claim as new, and desire to secure by Letters Patent, is

A Valve comprising a housing having an opening tlierein and an inlet and an Outlet from said opening, a plunger within said opening for controlling communication be tween said inlet and said outlet, packing material surrounding the plunger between.

the inlet and outlet, a cage engaging said packing, a gland, packing between tlie gland and cage and surrounding the plunger, packing on the/side of the outlet opposite the first named packing, and a second gland engaging the last named packing.

In testimony that we claim the foregoing we have hereunto set our hands at Milwaukee, in the eount7 of Milwaukee and Statey oit' Wisconsin.

KARL o. NELSON.v oTTo ALBERT. 

